This is the first time that the lender has broken the billion barrier in a single calendar year.
Speaking on the company’s success in the self-certification market Charles Reed, managing director of UCB Home Loans, said: "Breaking the £1 billion barrier strengthens our position as market leaders in the ‘true’ self-certification sector. Being able to declare your own income, without having to provide physical proof by way of payslips or accounts, can be invaluable to many, including those who are either self-employed, in careers which are based on contract work or in employment which produces a variable level of income."